There are 80 stickers in Box P and 80 stickers in Box Q.
Some stickers are transferred from Box P to Box Q.
Box Q has 70 more stickers than Box P.
How many stickers are transferred from Box P to Box Q?
|
Box P |
Box Q |
Before |
80 |
80 |
Change |
- ? |
+ ? |
After |
1 u |
1 u + 70 |
Total number of stickers
= 80 + 80
= 160
In the end
Total number of stickers = 1 u + 1 u + 70 = 2 u + 70
The total number of stickers at first and in the end remains unchanged.
2 u + 70 = 160
2 u = 160 - 70 = 90
1 u = 90 ÷ 2 = 45
Number of stickers that are transferred from Box P to Box Q
= Number of stickers in Box P at first - Number of stickers in Box P in the end
= 80 - 45
= 35
Answer(s): 35